src/gallium/drivers/etnaviv/etnaviv_compiler_cmdline.c

   1 /*
   2  * Copyright (c) 2015 Etnaviv Project
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the
  12  * next paragraph) shall be included in all copies or substantial portions
  13  * of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Rob Clark <robclark@freedesktop.org>
  25  *    Christian Gmeiner <christian.gmeiner@gmail.com>
  26  */
  27
  28 #include <err.h>
  29 #include <fcntl.h>
  30 #include <sys/mman.h>
  31 #include <sys/stat.h>
  32 #include <unistd.h>
  33
  34 #include "tgsi/tgsi_dump.h"
  35 #include "tgsi/tgsi_parse.h"
  36 #include "tgsi/tgsi_text.h"
  37
  38 #include "etnaviv_compiler.h"
  39 #include "etnaviv_debug.h"
  40 #include "etnaviv_internal.h"
  41
  42 static const struct etna_specs specs_gc2000 = {
  43    .vs_need_z_div = 0,
  44    .has_sin_cos_sqrt = 1,
  45    .has_sign_floor_ceil = 1,
  46    .vertex_sampler_offset = 8,
  47    .vertex_output_buffer_size = 512,
  48    .vertex_cache_size = 16,
  49    .shader_core_count = 4,
  50    .max_instructions = 512,
  51    .max_varyings = 12,
  52    .max_registers = 64,
  53    .max_vs_uniforms = 168,
  54    .max_ps_uniforms = 128,
  55    .num_constants = 168,
  56 };
  57
  58 static int
  59 read_file(const char *filename, void **ptr, size_t *size)
  60 {
  61    int fd, ret;
  62    struct stat st;
  63
  64    *ptr = MAP_FAILED;
  65
  66    fd = open(filename, O_RDONLY);
  67    if (fd == -1) {
  68       warnx("couldn't open `%s'", filename);
  69       return 1;
  70    }
  71
  72    ret = fstat(fd, &st);
  73    if (ret)
  74       errx(1, "couldn't stat `%s'", filename);
  75
  76    *size = st.st_size;
  77    *ptr = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
  78    if (*ptr == MAP_FAILED)
  79       errx(1, "couldn't map `%s'", filename);
  80
  81    close(fd);
  82
  83    return 0;
  84 }
  85
  86 static void
  87 print_usage(void)
  88 {
  89    printf("Usage: etnaviv_compiler [OPTIONS]... FILE\n");
  90    printf("    --verbose         - verbose compiler/debug messages\n");
  91    printf("    --help            - show this message\n");
  92 }
  93
  94 int
  95 main(int argc, char **argv)
  96 {
  97    int ret = 0, n = 1;
  98    const char *filename;
  99    struct tgsi_token toks[65536];
 100    struct tgsi_parse_context parse;
 101    struct etna_shader_variant *shader_obj;
 102    void *ptr;
 103    size_t size;
 104
 105    etna_mesa_debug = ETNA_DBG_MSGS;
 106
 107    while (n < argc) {
 108       if (!strcmp(argv[n], "--verbose")) {
 109          etna_mesa_debug |= ETNA_DBG_COMPILER_MSGS;
 110          n++;
 111          continue;
 112       }
 113
 114       if (!strcmp(argv[n], "--help")) {
 115          print_usage();
 116          return 0;
 117       }
 118
 119       break;
 120    }
 121
 122    filename = argv[n];
 123
 124    ret = read_file(filename, &ptr, &size);
 125    if (ret) {
 126       print_usage();
 127       return ret;
 128    }
 129
 130    debug_printf("%s\n", (char *)ptr);
 131
 132    if (!tgsi_text_translate(ptr, toks, ARRAY_SIZE(toks)))
 133       errx(1, "could not parse `%s'", filename);
 134
 135    tgsi_parse_init(&parse, toks);
 136
 137    shader_obj = etna_compile_shader(&specs_gc2000, toks);
 138
 139    if (shader_obj == NULL) {
 140       fprintf(stderr, "compiler failed!\n");
 141       return 1;
 142    }
 143
 144    etna_dump_shader(shader_obj);
 145    etna_destroy_shader(shader_obj);
 146 }